Glass cutting mechanism



Mayz, 1933- I Vl.. D. SOUBIER j 16,906,650

GLASS CUTTING MEGHAI SM Filed Nov. 14, 195o in the'manufacture of glassarticles formed operatiug with the mol Patentedl May 2, 1933.

LEQNARD D.

UNITED; S41,AST-124s[Parralu? rClfFFIC1B? Guss CUTTING 1 .My invention relates toapparatusufor use in molds, and particularl to mechanism co-y m old charges of ymolten glass.

The invei'itionr :as herein illustratedy is adapted for use "with a suction type of glass l ')vsring`l machine 'comprising' molds which yare brought in succession to a gathering position overatankorcontainer for molten glass, andthe charges of 'glass drawn into the molds by suctiom Cutting mechanism is employed o'r severing he glass between the moldsand the supplybody. Although with machines of this' type 1t is customary tok mounty the cuttingmechanism on the" traveling mold carria e, it has heretofore been proposed to provi e a stationary cutter. With such construction, in' which all of the molds ting position and t ered by thesaine archi-ought in ra id succession yto the cut-r lle Igla'ss'in each mold sevwhen" it is 'attempted'to use a in the' patent'y "to M 1J Owens, lNumber 51,547,439, granted July 28, 1925.

stationary mounting,

bject of the ypresent invention islfto providey a simpleand practical form of cuty ting mechanism in which'the cutterhas a which mechanism ywill overcome the diliculties above noted. To

The cutter is reciprocat'ed ina direction transverse tothe direction in which `fthe moldsareltraveling at the time the glass is severed, andthecuttingedges operate in charges of glass.

succession "to `r sever the successive .mold

, 'other' @meets of the invention' kwmfappear hereinafter. v "1n fthe paccompanymg draWlIlg j l 1S a fragmentary elevtwnl vlew,

partly in section, of

s orfsevering ythe p cutting edge, diiculties are encou'nteredowingto overheating of the cutter and .augmented y v stationary `cutter with machines of the type in which plural'molds y Y 'head or unit ofthenlachine Iand the moldk cavities 'are f all arranged -to travel in the same circular path,V as shown,.for example,

excesslvelwear. This diiculty is are employed on each shaped bracket y22 king 23 which sup Fig. 2 is a sectional plan view lshowing a plural lcavity mold.l

a ,"glass'blowing mafA chine and gatherin tank,`with the present `invention applied t ereto. f

or Amon, 1131.111015;fnssremoaV 'ro oms-rumors Guss commi-A conromrronor omo f Y, c .f

Fig. 3 is a sectlonal yelevation at'the line III-'.-III onFig. 1.

y 1 and 5 are diagrammatic views vshowlng `the relative positions of the mold succeeding mold charges.

The glass'blowin machine `comprisesa and cutter at thetime of severance `of ytwo mold 'carriage' 10 whlch may be mountedfor continuous rotationv about a verticalfaxis and onf ,whlch are mounted' a. plurality of heads o r units each carryingy moldblocks 'v or ysec-y tlons 11. Each mold block is formedjwith plural :cavities 12 `so 'that .al plurality f of .molds are provided on each'head or unit of Lth'ecarnage.` -The mold cavities arepreferably arranged at equal distancesV from the center of vthe'mold carriage so thaty they all travel in thesame'circular path.v The mold- Carriage* and parts carried vthereby may be the same as more fully disclosed `inlthe patent to Owens above identified. The charv of are drawn by suction into 'the' mo ds jfromfa supply body 13 of molten glass within ya'conta'iner :14 kwhichmay be elther a rotatmg pot ora stationary container. 4s herein slhownfthev container is stationary *and may 'comprise the usual t:forehearth ex'- tension of a glass melting and yrefining-tank. The mechanism for severing vthe -glass comprises a cutter plate'or blade 15, the 1 shankfof which iits in a channel shaped suport'16 andis securedy therein as by-'m'eans of rivets -17 The support 16 isprovided on its' under side with'a kvertical extension 18 by means ofrwhich the cutter is attached toa lslide block 19, 'Bolts20 extending through ivertical slots 21 in the-'slide blockpermit vertical adjustment of the cutter. As herein ,y shown,y the `slidev block is mounted on a yoke bolted yto the metal casrts'the" container 14. The

supporting brac et" 22 comprises parallel arms 24iformed with horizontal guideways 2 5A in which the slide block 19`is mounted fork kloo elongated to permit horizontal adjustmentv of the cams. A cam roll 28 on the slide block 19 runs on the cams and is held against the cams by a coil spring 29 mounted on a rod 30 attached to the bracket 22. The spring is held under compression at all times between said bracket and a lug 31 on the slide block, said lug being slidable on the rod'30. When the cam roll is out of contact with the cams the outward movement of the slide block is limited by a cross bar 32 which connects the outer ends of the arms 24. The cutter blade is provided with a plurality of V-shaped cutting edges 33 and 34.

The operation is as follows:

As the mold carriage rotates, the molds 11 are brought in succession over the pool of glass 13 and filled by suction. Each mold after receiving its char e, is lifted, as usual, a short distance above t e glass level, bringing the bottom end of the mold into the horizontal plane of the cutter 15. As the mold sweeps over the cutter, the outer V-sha ed cutting edge 34 severs the glass in the rst mold cavity as indicated in Fig. 4. The cam 26 then operates to move the cutter outwardly or away` from the center of the machine so as to bring the next V cutting edge 33 into the path oftravel of the mold cavities so that the second charge ofk glass is severed Y by the edge 33 as indicated in Fig. 5. The

cam 26`then passes beyond the cam roll 28 and the cutter is returned by its spring 29 ready for a succeeding operation.

Although I have only shown twocutting sections or notches on the cutter blade,` it

will be understood that with machines in which a greater number of .molds or mold cavities are provided on each `head or unit the number of cutting notches may be correspondingly increased. It will be further understood that a cutting apparatus such as herein shown can be used with machines of the type in which but a single mold and mold' cavity are provided on each head or unit, the cams 26 being shaped to successivelybring the cutting notches into position for cooperation with successive molds.

It will be noted that the cutter blade. as herein shown. extends over the tank, so that the tails of glass severed from the mold are permitted to vdrop back into the container 14. Owing to the position of the knife, it is at all times subjected to a comparatively high temperature sothat the rate of cooling between cutting operations is comparatively slow. By providing a plurality of cutting edges operating in alternation or succession,

a cutter plate,

time allowed for cooling lis increased and the danger of overheating is greatly reduced. By removing the bolts 20 the cutter blade can be quickly removed for repairs or replacement.

Modifications Vmay be resorted to within the s irit and scope of my invention.

W at I claim is:`

1. The combination of a mold carriage rotatable about a vertical axis; molds thereon, cutting mechanism having a stationary mounting, said mechanism providing a pluralit of cutting edges, and means controlled by the movement of the mold carriage to position said edges for operation singly and 1n succession for severing charges ofglass in succeeding molds.

2. The combination of a mold carriage rotatable about a vertical axis, molds thereon arranged to travel in the same horizontal path, cutting mechanism mounted separately from the mold carriage and comprising a plurality of cutters, and means for bringing the cutters in succession to the same cutting position and causing said cutters to operate singly and in succession at said osition to sever succeeding mold charges o glass.

3. A The combination of a mold carriage rotatable about a vertical axis, molds thereon arranged to travel in the same horizontal path, cutting mechanism comprising a plurality of cutters having a statlonar mounting, and mechanism controlled by t e movement of the mold carriage to position said cutters in succession at the same cutting position and causing them t0 sever mold charges in succession at said position.

4. The combination of a mold carriage rotatable about a vertical axis, molds thereon, a stationary support on which said plate is mounted for reciprocation in a direction transverse to the direction in which the molds travel past the cutting point, said cutter plate being provided with a plurality of cutting edges at different distances from the axis of the mold carriage, and cams on the mold carriage operative to bring said cutting edges in succession to position for severing charges of glass in the succeeding molds.

5'. The combination of a mold carriage rotatable about a vertical axis, a container for molten glass, molds on the carriage arranged to travel over the glass in the container, a cutter extending over the glass in said container, a stationary support on which the cutter is mounted for reciprocation in a direction radial to the mold carriage, and cams on the mold carriage operative to reciprocate said cutter.

6. The combination ofa mold carriage rotatable about a vertical axis, a container for molten glass, molds on the carriage arranged cutter extending over the glass in said conioo tainer, a stationary support on which the cutter is mountedforl, reci rocation in a direc-Y tion radial to the Amol carriage, and on the mold carriage operative to reciprocate 5, said cutter, said cutter being provided` with v a plurality of cutting notches brought in succession by said. cams into' osition for severing-the. mold charges of 2g ass in su molds. s

l 7. The combination of amold carriage rotatable about a vertical axis, a container for molten glass, molds on the carriage arranged to travel over kthe glass inthe container, a cutter extending yover the glass in saidcontainer, a stationa 'support on which the cutter is mounted or reciprocation in a direction radial to the mold carriage,`and cams on the mold carriage operative toreciprocate saidfcutter,l said cutter being proyided with a plurality' of cutting notches,` the molds bef ing so arranged that the mold` cavities travel in the same circular path,`and said cams be ing `shaped and operative to bring the cutting n notches in.r succession into said ath.

Signedl at Alton, Illinois, -t is 4 day of November, A1930. p f 4 f WLEONARD D.LSOUBIER. Y

A:es 

